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Synapse API — Gnosis Chain Transaction History
x402
Synapse API — Gnosis Chain Transaction History is a paid API for AI agents from synapse-api-brown.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Retrieves paginated transaction history for addresses on the Gnosis blockchain network
Price / call$0.01
Success—
StatusUnknown
How this service works
High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.
Output
Returns a paginated list of transactions on the Gnosis blockchain matching the specified filters, including sender/receiver addresses, block numbers, transaction hashes, and optionally full metadata such as token names, decimals, and values. A pageKey is included for cursor-based pagination through large result sets.
Example use cases
Wallet audit for compliance review
“Get me all transactions sent from 0xDEAD...BEEF on Gnosis chain between block 30000000 and 32000000, sorted ascending, and include full metadata — I need to audit this wallet's activity.”
Portfolio tracker for incoming transfers
“Fetch the 50 most recent incoming transfers to my Gnosis wallet 0x1234...5678, sorted newest first, and exclude any zero-value transactions so I only see real activity.”
DeFi protocol activity monitoring
“Query the transaction history for Gnosis address 0xABCD...EFGH filtered to ERC-20 token transfers only, show up to 100 results in descending order, and include metadata — I'm trying to monitor this DeFi protocol's on-chain flows.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/gnosis/tx/historyWhen to prefer
Choose this endpoint when you need on-chain transaction history specifically for the Gnosis blockchain (xDai chain). It supports flexible filtering by address, block range, transaction category, and sort order with cursor-based pagination — ideal for auditing wallets, building portfolio trackers, or monitoring DeFi protocol activity on Gnosis. Not suitable for other chains like Ethereum mainnet, Polygon, or Arbitrum, which would require sibling endpoints.
Side effects
- Invalid address format returns a validation error
- Block range too large may time out or return partial results
- Invalid category string causes a 400 bad request
- Missing both fromAddress and toAddress may return empty or error
- pageKey from a different query context may cause inconsistent pagination
- Network congestion or RPC node issues may cause latency spikes or 503 errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| order | string | |
| pageKey | string | |
| toBlock | string | |
| category | array | |
| maxCount | number | |
| fromBlock | string | |
| toAddress | string | |
| fromAddress | string | |
| withMetadata | boolean | |
| excludeZeroValue | boolean |
Tags
x402
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